Explore "Sense of Obligation" by Harry Harrison on Textopian. Read with annotations and highlights.
"Identify yourself, please. " The quiet words from the speaker in no way appeared to coincide with the picture on the screen. The spacer that had matched their orbit over Dis had recently been a freighter. A quick conversion had tacked the hulking shape of a primary weapons turret on top of her hull. The black disk of the immense muzzle pointing squarely at them. Ihjel switched open the ship-to-ship communication channel.
"This is Ihjel. Retinal pattern 490-Bj4-67 -- which is also the code that is supposed to get me through your blockade. Do you want to check that pattern?"